Generalized eruptive histiocytoma (also known as 'Eruptive histiocytoma,' and 'Generalized eruptive histiocytosis') is a rare cutaneous condition characterized by widespread, erythematous, essentially symmetrical papules, particularly involving the trunk and proximal extremities.:717 Generalized eruptive histiocytoma (also known as 'Eruptive histiocytoma,' and 'Generalized eruptive histiocytosis') is a rare cutaneous condition characterized by widespread, erythematous, essentially symmetrical papules, particularly involving the trunk and proximal extremities.:717